A+B=6 A-B=2 Then A*B=????

Asked by Last Modified  

102 Answers

Follow 1
Answer

Please enter your answer

Make it simple - A + B = 6 A - B = 2 (Adding both the equations) 2A = 8 A = 4 , that implies B = 2 A*B = 4*2 = 8
Comments

Experienced Online Maths and Science Tutor with 10+ Years of Experience in Private Tutoring

(a+b)²-(a-b)²=4ab 6² - 2² = 4ab 36-4=4ab 32=4ab Thus ab = 32/4 = 8 Simple !!
Comments

Expert in Math & Science

A*B=8
Comments

Math Magician

A+B+A-B=6+2=>8 2A=8 SO A=4 Similarly subtract both equation A+B-(A-B)=6-2; A+B-A+B=4, 2B=4 So B=2 ; Put A=4 and B=2 in A*B then we get 4*2=8 .
Comments

Tutor

8
Comments

Best Engineering Graphics & Drawing and Machine DrawingTeacher, Mechanical Workshop Technology and Basics of Mechanical Engineering

Gaurang' method is easier.
Comments

Teacher

A*B=8, (A=4, B=2)
Comments

Maths Home Tutor

A=4, B=2, so A*B=8
Comments

Science Teacher

therefore A*B= 4X2=8
Comments

Tuitions for class 1 to 8

8
Comments

View 100 more Answers

Related Questions

What are the laws of exponents?
Power rule I (an) m = a n·m
Profile Photo
Roslin
0 0
View Comments9
What is the difference between specific heat & latent heat?
Specific heat: = energy required to change a unit mass of a material by 1°C. Units: energy per unit mass per degree. Latent heat = energy required to change the state (gas, liquid, solid) of a unit mass of material.
Profile Photo
Sandeep Kumar

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

OAA
I suggest a writing tip called OAA which means Observe Analyse and Apply. one will find it easy to answer any question if you follow this trip
Profile Photo

Multiplication Of Two Digit Numbers Ending In 5.
Case 1.) Multiplication of two digit numbers ending in five and tens place having the same number. 25x25 = 625 Modus Operandi:Multiply the units digits i.e, :5x5 = 25Now for the tens digit. Multiply...
A

Ajinkya Anant Jawalkar

1 0
View Comments0

1 sec tricks : 95*97 and 107*104
Steps: 1) Find the difference of each number from 100: 95 x 975 32) Cross Subtract the difference (95-3)=(97-5)=92 => This is the first part of the answer 3) Multiply the differences5 x 3 = 15 =>...
Profile Photo

Biology - DNA(Deoxyribonuclic Acid)
How the strands of thread forms a cloth and creates the cloth’s color, shape and designs same way a DNA is responsible for the development and functioning of living organisms. An organism is made...
Profile Photo

Atom and Molecular numerical Part 5
Q. A 0.24 g sample of compound of oxygen and boron was found by analysis to contain 0.096 g of boron and 0.144 g of oxygen. Calculate the percentage composition of the compound by weight. Ans: Total...
Profile Photo

Recommended Articles

E-learning is not just about delivering lessons online. It has a much broader scope that goes beyond manual paper or PowerPoint Presentations. To understand the reach of E-learning and how the whole process works in developing the Educational system, we will discuss a few points here. Let us find out how this new learning...

Read full article >

Quality education does not only help children to get a successful career and life, but it also hugely contributes to society. The formal education of every child starts from school. Although there are numerous schools, parents find it challenging to choose the right one that would fit their child. It is difficult for them...

Read full article >

With the mushrooming of international and private schools, it may seem that the education system of India is healthy. In reality, only 29% of children are sent to the private schools, while the remaining head for government or state funded education. So, to check the reality of Indian education system it is better to look...

Read full article >

With the current trend of the world going digital, electronic renaissance is a new movement that is welcomed by the new generation as it helps makes the lives of millions of people easier and convenient. Along with this rapidly changing movement and gaining popularity of Internet, e-Learning is a new tool that emerging...

Read full article >

Looking for Class 8 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you